環(huán)境和所需包：

       1，JDK1.5

       2，poi-3.5-FINAL-20090928.jar，

            poi-contrib-3.5-FINAL-20090928.jar，

            poi-ooxml-3.5-FINAL-20090928.jar，

            poi-scratchpad-3.5-FINAL-20090928.jar，

            log4j-1.2.13.jar，

            commons-logging-1.1.jar，

            junit-3.8.1.jar，

            dom4j-1.6.1.jar，

            geronimo-stax-api_1.0_spec-1.0.jar，

            ooxml-schemas-1.0.jar，

            xmlbeans-2.3.0.jar

            注意 ：

                    1，可能有些包不需要，沒有測(cè)試，因?yàn)橛行┌?xiàng)目中已經(jīng)存在了

                    2，我開始少了最后2個(gè)包，報(bào)：

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/xmlbeans/XmlException

Java代碼：

Java代碼

1. import java.io.File;   
2. import java.io.FileInputStream;   
3. import java.io.InputStream;   
4.   
5. import org.apache.poi.hssf.usermodel.HSSFDateUtil;   
6. import org.apache.poi.xssf.usermodel.XSSFCell;   
7. import org.apache.poi.xssf.usermodel.XSSFRow;   
8. import org.apache.poi.xssf.usermodel.XSSFSheet;   
9. import org.apache.poi.xssf.usermodel.XSSFWorkbook;   
10.   
11. public class POIExcelDemo {   
12.   
13.     public static void read(String fileName) throws Exception {   
14.            
15.         XSSFWorkbook wb = new XSSFWorkbook(fileName);   
16.         read(wb);   
17.     }   
18.        
19.     public static void read(InputStream is) throws Exception {   
20.         XSSFWorkbook wb = new XSSFWorkbook(is);   
21.         read(wb);   
22.     }   
23.        
24.     public static void read(XSSFWorkbook xwb) throws Exception {   
25.         try {   
26.                
27.             for (int k = 0; k < xwb.getNumberOfSheets(); k++) {   
28.   
29.                 XSSFSheet sheet = xwb.getSheetAt(k);   
30.                 int rows = sheet.getPhysicalNumberOfRows();   
31.   
32.                 for (int r = 0; r < rows; r++) {   
33.                     // 定義 row   
34.                     XSSFRow row = sheet.getRow(r);   
35.                     if (row != null) {   
36.                         int cells = row.getPhysicalNumberOfCells();   
37.   
38.                         for (short c = 0; c < cells; c++) {   
39.                             XSSFCell cell = row.getCell(c);   
40.                             if (cell != null) {   
41.                                 String value = null;   
42.   
43.                                 switch (cell.getCellType()) {   
44.   
45.                                 case XSSFCell.CELL_TYPE_FORMULA:   
46.                                     value = "FORMULA ";   
47.                                     break;   
48.   
49.                                 case XSSFCell.CELL_TYPE_NUMERIC:   
50.                                     if(HSSFDateUtil.isCellDateFormatted(cell)){   
51.                                         value = "DATE value="  
52.                                             + cell.getDateCellValue();   
53.                                     }else{   
54.                                         value = "NUMERIC value="  
55.                                                 + cell.getNumericCellValue();   
56.                                     }   
57.                                        
58.                                     break;   
59.   
60.                                 case XSSFCell.CELL_TYPE_STRING:   
61.                                     value = "STRING value="  
62.                                             + cell.getStringCellValue();   
63.                                     break;   
64.                                        
65.                                 case XSSFCell.CELL_TYPE_BOOLEAN:   
66.                                     value = "BOOLEAN value="  
67.                                             + cell.getBooleanCellValue();   
68.                                        
69.                                        
70.                                     cell.getDateCellValue();   
71.                                        
72.                                     break;   
73.   
74.                                 default:   
75.                                 }   
76.                                    
77.                                 System.out.println(value);   
78.   
79.                             }   
80.                         }   
81.                     }   
82.                 }   
83.             }   
84.         } catch (Exception e) {   
85.   
86.             e.printStackTrace();   
87.         }   
88.   
89.     }   
90.   
91.     /**  
92.      * @param args  
93.      * @throws Exception   
94.      */  
95.     public static void main(String[] args) throws Exception {   
96.         // TODO Auto-generated method stub   
97.   
98.         File f = new File("d:/Test.xlsx");   
99.            
100.         FileInputStream is = new FileInputStream(f);   
101.            
102.         System.out.println(f.getName());   
103.            
104.         read(is);   
105.            
106.            
107.     }   
108.   
109. }  

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class POIExcelDemo {
public static void read(String fileName) throws Exception {
XSSFWorkbook wb = new XSSFWorkbook(fileName);
read(wb);
}
public static void read(InputStream is) throws Exception {
XSSFWorkbook wb = new XSSFWorkbook(is);
read(wb);
}
public static void read(XSSFWorkbook xwb) throws Exception {
try {
for (int k = 0; k < xwb.getNumberOfSheets(); k++) {
XSSFSheet sheet = xwb.getSheetAt(k);
int rows = sheet.getPhysicalNumberOfRows();
for (int r = 0; r < rows; r++) {
// 定義 row
XSSFRow row = sheet.getRow(r);
if (row != null) {
int cells = row.getPhysicalNumberOfCells();
for (short c = 0; c < cells; c++) {
XSSFCell cell = row.getCell(c);
if (cell != null) {
String value = null;
switch (cell.getCellType()) {
case XSSFCell.CELL_TYPE_FORMULA:
value = "FORMULA ";
break;
case XSSFCell.CELL_TYPE_NUMERIC:
if(HSSFDateUtil.isCellDateFormatted(cell)){
value = "DATE value="
+ cell.getDateCellValue();
}else{
value = "NUMERIC value="
+ cell.getNumericCellValue();
}
break;
case XSSFCell.CELL_TYPE_STRING:
value = "STRING value="
+ cell.getStringCellValue();
break;
case XSSFCell.CELL_TYPE_BOOLEAN:
value = "BOOLEAN value="
+ cell.getBooleanCellValue();
cell.getDateCellValue();
break;
default:
}
System.out.println(value);
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
File f = new File("d:/Test.xlsx");
FileInputStream is = new FileInputStream(f);
System.out.println(f.getName());
read(is);
}
}

寫完之后完把文件改成讀取test.xls(Excel2003)，發(fā)現(xiàn)出現(xiàn)Exception in thread "main" org.apache.poi.openxml4j.exceptions.InvalidOperationException: Can't open the specified file: 'C:\DOCUME~1\CHENXI~1\LOCALS~1\Temp\poifiles\poi-ooxml-1966473540.tmp'
    at org.apache.poi.openxml4j.opc.ZipPackage.<init>(ZipPackage.java:102)

所以為了兼容讀取2003，我把代碼給成如下：

Java代碼

1. import java.io.File;   
2. import java.io.FileInputStream;   
3. import java.io.InputStream;   
4.   
5. import org.apache.poi.hssf.usermodel.HSSFDateUtil;   
6. import org.apache.poi.hssf.usermodel.HSSFWorkbook;   
7. import org.apache.poi.poifs.filesystem.POIFSFileSystem;   
8. import org.apache.poi.ss.usermodel.Cell;   
9. import org.apache.poi.ss.usermodel.Row;   
10. import org.apache.poi.ss.usermodel.Sheet;   
11. import org.apache.poi.ss.usermodel.Workbook;   
12. import org.apache.poi.xssf.usermodel.XSSFWorkbook;   
13.   
14. public class POIExcelDemo {   
15.   
16.     /**  
17.      *   
18.      * @param fileName 文件路徑  
19.      * @param flag 是2003還是2007 true：2003，false：2007  
20.      * @throws Exception  
21.      */  
22.     public static void read(String fileName,boolean flag) throws Exception {   
23.         Workbook wb = null;   
24.         if(flag){//2003   
25.             File f = new File(fileName);   
26.                
27.             FileInputStream is = new FileInputStream(f);   
28.             POIFSFileSystem fs = new POIFSFileSystem(is);      
29.             wb = new HSSFWorkbook(fs);   
30.             is.close();   
31.         }else{//2007   
32.             wb = new XSSFWorkbook(fileName);   
33.         }   
34.            
35.         read(wb);   
36.     }   
37.        
38.     /**  
39.      *   
40.      * @param is 輸入流  
41.      * @param flag 是2003還是2007 true：2003，false：2007  
42.      * @throws Exception  
43.      */  
44.     public static void read(InputStream is,boolean flag) throws Exception {   
45.         Workbook wb = null;   
46.            
47.         if(flag){//2003   
48.             wb = new HSSFWorkbook(is);   
49.         }else{//2007   
50.             wb = new XSSFWorkbook(is);   
51.         }   
52.            
53.         read(wb);   
54.     }   
55.        
56.     /**  
57.      * 具體讀取Excel  
58.      * @param wb  
59.      * @throws Exception  
60.      */  
61.     public static void read(Workbook wb) throws Exception {   
62.         try {   
63.                
64.             for (int k = 0; k < wb.getNumberOfSheets(); k++) {   
65.   
66.                 //sheet   
67.                 Sheet sheet = wb.getSheetAt(k);   
68.                 int rows = sheet.getPhysicalNumberOfRows();   
69.   
70.                 for (int r = 0; r < rows; r++) {   
71.                     // 定義 row   
72.                     Row row = sheet.getRow(r);   
73.                     if (row != null) {   
74.                         int cells = row.getPhysicalNumberOfCells();   
75.   
76.                         for (short c = 0; c < cells; c++) {   
77.                             Cell cell = row.getCell(c);   
78.                             if (cell != null) {   
79.                                 String value = null;   
80.   
81.                                 switch (cell.getCellType()) {   
82.   
83.                                 case Cell.CELL_TYPE_FORMULA:   
84.                                     value = "FORMULA value=" + cell.getCellFormula();   
85.                                     break;   
86.   
87.                                 case Cell.CELL_TYPE_NUMERIC:   
88.                                     if(HSSFDateUtil.isCellDateFormatted(cell)){   
89.                                         value = "DATE value="  
90.                                             + cell.getDateCellValue();   
91.                                     }else{   
92.                                         value = "NUMERIC value="  
93.                                                 + cell.getNumericCellValue();   
94.                                     }   
95.                                        
96.                                     break;   
97.   
98.                                 case Cell.CELL_TYPE_STRING:   
99.                                     value = "STRING value="  
100.                                             + cell.getStringCellValue();   
101.                                     break;   
102.                                        
103.                                 case Cell.CELL_TYPE_BOOLEAN:   
104.                                     value = "BOOLEAN value="  
105.                                             + cell.getBooleanCellValue();   
106.                                        
107.                                        
108.                                     cell.getDateCellValue();   
109.                                        
110.                                     break;   
111.   
112.                                 default:   
113.                                 }   
114.                                    
115.                                 System.out.println(value);   
116.   
117.                             }   
118.                         }   
119.                     }   
120.                 }   
121.             }   
122.         } catch (Exception e) {   
123.   
124.             e.printStackTrace();   
125.         }   
126.   
127.     }   
128.   
129.     /**  
130.      * @param args  
131.      * @throws Exception   
132.      */  
133.     public static void main(String[] args) throws Exception {   
134.         // TODO Auto-generated method stub   
135.   
136.         File f = new File("d:/test.xlsx");   
137.            
138.         FileInputStream is = new FileInputStream(f);   
139.            
140.         System.out.println(f.getName());   
141.            
142.         read(is,false);   
143.            
144.            
145.     }   
146.   
147. }